Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D271228 | Playground climber | Valentine J. Zimmerman, Lloyd J. Rubbelke | 1983-11-01 |
| D262399 | Heater front with doors | Valentine J. Zimmerman | 1981-12-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D271228 | Playground climber | Valentine J. Zimmerman, Lloyd J. Rubbelke | 1983-11-01 |
| D262399 | Heater front with doors | Valentine J. Zimmerman | 1981-12-22 |